| Patents for C07B 63 - Purification; Separation specially adapted for the purpose of recovering organic compounds; Stabilisation; Use of additives (4,057) |
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| 10/12/1988 | EP0286090A1 Improved composite separation membranes and the preparation and use thereof |
| 09/28/1988 | EP0283862A1 Process for the removal of ethylene oxide and/or prolylene oxide from surface-active derivatives |
| 09/27/1988 | CA1242459A1 Process for the destruction of by-product tetranitromethane |
| 09/21/1988 | EP0282531A1 Stable crystalline form of an intermediate product of cephalosporine. |
| 09/13/1988 | US4770780 Liquid CO2 /cosolvent extraction |
| 09/07/1988 | EP0280817A2 Process for the removal of basic materials from plant products |
| 08/30/1988 | US4767422 Repairing defects by post-treatment with volatile solvent and additives |
| 08/24/1988 | EP0279439A2 Purification process for crystallized layers |
| 08/09/1988 | CA1240450A1 Removal of iodide compounds from non-aqueous organic media |
| 07/26/1988 | US4760204 Process for deodorizing isopropyl alcohol |
| 07/19/1988 | US4758445 Process for the production of isohumulones |
| 07/06/1988 | EP0273156A2 Method for producing pure crystalline products |
| 06/28/1988 | US4754058 Inhibition of polymerization fouling during distillation of monomers in the presence of sulfur oxides |
| 06/21/1988 | CA1238305A1 Liquid co.sub.2/cosolvent extraction |
| 06/15/1988 | EP0270964A2 Process for obtaining substituted fluorobenzenes |
| 06/08/1988 | EP0270095A2 Packing material for liquid chromatography |
| 06/07/1988 | US4749393 Acid gas removal, dehydration, cryogenic separation |
| 06/01/1988 | EP0269044A2 Process for the recuperation of pyridine or methyl pyridine or mixture thereof from a reaction mixture containing butanedicarboxylic acid methyl esters |
| 05/11/1988 | CN87105310A Process for extracting paraffins from their mixtures with alkanesulphonic acids |
| 05/03/1988 | US4741832 Dialysis |
| 04/20/1988 | EP0264226A1 Separation process by crystallisation |
| 04/20/1988 | CN87105311A Process for extracting paraffins from their mixtures with paraffinsulphonic acids |
| 04/12/1988 | CA1235135A1 Polymerization inhibitors |
| 04/12/1988 | CA1235109A1 Extraction of substances from aqueous solution |
| 03/30/1988 | EP0261700A1 Process for extracting paraffins from their mixtures with parraffinsulphonic acids |
| 03/24/1988 | WO1988002001A1 New stable crystalline form of an intermediate product of cephalosporine |
| 03/02/1988 | CN87104295A Method separating aminoacid |
| 03/01/1988 | CA1233478A1 S-(4-hydroxyphenyl)thioester derivatives |
| 02/23/1988 | US4727218 Crystallization onto curved, cooled surface |
| 02/03/1988 | EP0255331A2 Method for treating glycoside |
| 01/27/1988 | EP0254368A1 Process for extracting paraffins from their mixtures with alkanesulphonic acids |
| 01/19/1988 | US4720327 Distillative separation of liquid mixtures of substances |
| 01/07/1988 | EP0251852A1 Process for the separation of amino acids |
| 01/07/1988 | EP0250953A1 Process for the extraction of oily fruits |
| 12/22/1987 | US4714555 Agent for separation |
| 12/15/1987 | US4713232 Process for the destruction of by-product tetranitromethane |
| 11/24/1987 | US4709106 Process for deodorizing isopropyl alcohol |
| 11/19/1987 | EP0245679A2 Dehalogenation process |
| 11/18/1987 | CN87102764A Process for the destruction of by-product tetranitromethane |
| 11/18/1987 | CN87100934A Method of continous seperating water from organic admixture |
| 11/12/1987 | EP0179863A4 Liquid co2 /cosolvent extraction. |
| 11/04/1987 | CN87103209A Process for extraction of paraffin from mixtures thereof with alkane-sulphonic acids |
| 10/28/1987 | EP0242778A1 Separation of diastereo isomers |
| 10/14/1987 | EP0241194A1 Process for the destruction of by-product tetranitromethane |
| 10/13/1987 | US4699939 Oxidation resistance, photostability |
| 09/30/1987 | EP0239177A1 Process for the extraction of paraffins from mixtures thereof with alkane-sulphonic acids |
| 09/29/1987 | US4697027 Acidification, dechlorination |
| 09/22/1987 | US4695511 Hydrophobic-oleophilic |
| 09/16/1987 | EP0236981A1 Process for deodorization of isopropyl alcohol |
| 09/16/1987 | EP0236980A2 Process for deodorizing isopropanol |
| 09/02/1987 | EP0234932A2 Extraction process using supercritical fluid |
| 09/02/1987 | EP0234508A2 Process for the continuous separation of water from a mixture with organic substances |
| 09/01/1987 | US4691044 Reacting sulfur with phenol derivative |
| 07/15/1987 | EP0228957A1 Process for extraction of organic compounds from their solutions or from aqueous suspensions |
| 07/08/1987 | EP0227797A1 Reduction of organohalogen compounds in metal and metalloid chloride production streams |
| 06/24/1987 | EP0226545A1 Substituted aminoxyethyl phosphonates |
| 06/03/1987 | EP0224442A1 Use of substituted phenols as stabilizers |
| 05/27/1987 | EP0223210A2 Method for purifying alkoxysilane |
| 05/27/1987 | CN86107859A Substituted phenols as stabilisers |
| 04/22/1987 | EP0219459A2 Substituted p-hydroxyphenyl compounds |
| 04/22/1987 | EP0218960A2 Process and apparatus for extracting solids from a liquid mixture |
| 03/25/1987 | EP0215010A1 Insecticidal composition comprising more than one active ingredients. |
| 01/21/1987 | EP0208758A1 Pyrethroidal composition comprising more than one active ingredients. |
| 01/15/1987 | WO1987000157A1 Reduction of organohalogen compounds in metal and metalloid chloride production streams |
| 01/07/1987 | CN85104970A Separation and purification of high purity crystalline licoricic acid |
| 12/09/1986 | US4627919 Resolving agent |
| 11/26/1986 | CN85104165A Primycin components and process for the separation of the antibiotic complex |
| 11/25/1986 | CA1214448A1 Preparation of zeolite coated substrates |
| 11/12/1986 | CN86102949A Process for shortstopping free radical polymerization and stabilized resin compositions |
| 11/05/1986 | EP0200181A2 Process for shortstopping free radical polymerization |
| 11/05/1986 | EP0200106A2 Process for the recuperation of aqueous solutions of organic acids or bases from aqueous solutions of their salts |
| 10/29/1986 | EP0199101A1 Process for the preparation of isohumulones and their use |
| 10/29/1986 | CN86101411A Removal of iodide compounds from non-aqueous organic media |
| 10/28/1986 | US4619970 Chromatographic resoluing agent of silion gel bonded to optically active polymer |
| 10/07/1986 | US4615806 Removal of iodide compounds from non-aqueous organic media |
| 10/01/1986 | EP0196173A1 Removal of iodide compounds from non-aqueous organic media |
| 09/10/1986 | EP0193716A2 Adsorptive separation of methane and carbon dioxide gas mixtures |
| 09/02/1986 | US4609384 Multiple temperature level regeneration of CO2 from physical solvent |
| 07/31/1986 | WO1986004216A1 Insecticidal composition comprising more than one active ingredients |
| 07/31/1986 | WO1986004215A1 Pyrethroidal composition comprising more than one active ingredients |
| 07/23/1986 | EP0188068A2 Method for purifying reaction solution obtained by using microbial cell, immobilized microbial cell, or immobilized enzyme |
| 07/09/1986 | EP0186982A2 Extraction of aromatics with N-cyclohexyl-2-pyrrolidone |
| 06/10/1986 | CN85109641A Method of carring out chemicaldehydration reaction and an apparatus therefor |
| 06/03/1986 | US4593149 Then using a desorpent |
| 05/28/1986 | EP0182521A2 Process for stabilizing organic compounds and compositions stabilized thereby |
| 05/20/1986 | US4590301 Using phenol or diketone cyclohexyl compounds |
| 05/07/1986 | EP0180425A2 A process for separating ethylebenzene from xylenes by selective adsorption on a cesium-substituted x zeolite |
| 05/07/1986 | EP0179863A1 Liquid co2 /cosolvent extraction. |
| 04/30/1986 | EP0179476A1 Polymerization inhibitors and polymerization-inhibited solutions of monomers |
| 04/23/1986 | EP0178669A2 Method of carrying out chemical dehydration reaction and an apparatus therefore |
| 03/25/1986 | US4578372 Rotating particles in reaction mixture; heating to form coating layer |
| 03/12/1986 | EP0174277A1 Anti-oxidant compositons for organic material |
| 02/19/1986 | EP0171704A1 Method for eluting a metal adsorbed on a chelating agent |
| 02/11/1986 | US4569755 Recovering and recycling solvent |
| 01/15/1986 | EP0168140A2 Purification apparatus and method employing a regenerable ligand |
| 01/08/1986 | EP0167401A2 Procedure and means for separating or purifying organic substances |
| 12/11/1985 | EP0164070A1 Salts of 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine and amino compounds |
| 11/07/1985 | WO1985004816A1 Liquid co2/cosolvent extraction |
| 10/29/1985 | US4549990 Solvent extraction using an ester |
| 10/23/1985 | EP0158884A2 Separation agent comprising 1,3-glucan |